<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html lang="en-us" xml:lang="en-us"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="security" content="public" /> <meta name="Robots" content="index,follow" /> <meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' /> <meta name="DC.Type" content="reference" /> <meta name="DC.Title" content="Example: SQL table UDFs" /> <meta name="abstract" content="This example illustrates a table function that returns data based on a date." /> <meta name="description" content="This example illustrates a table function that returns data based on a date." /> <meta name="DC.Relation" scheme="URI" content="rbafyudfsql.htm" /> <meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" /> <meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" /> <meta name="DC.Format" content="XHTML" /> <meta name="DC.Identifier" content="rbafyudftableex" /> <meta name="DC.Language" content="en-us" /> <!-- All rights reserved. Licensed Materials Property of IBM --> <!-- US Government Users Restricted Rights --> <!-- Use, duplication or disclosure restricted by --> <!-- GSA ADP Schedule Contract with IBM Corp. --> <link rel="stylesheet" type="text/css" href="./ibmdita.css" /> <link rel="stylesheet" type="text/css" href="./ic.css" /> <title>Example: SQL table UDFs</title> </head> <body id="rbafyudftableex"><a name="rbafyudftableex"><!-- --></a> <!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script> <h1 class="topictitle1">Example: SQL table UDFs</h1> <div><p>This example illustrates a table function that returns data based on a date.</p> <div class="section"><pre><strong>CREATE FUNCTION</strong> PROJFUNC(indate <strong>DATE</strong>) <strong>RETURNS TABLE</strong> (PROJNO <strong>CHAR</strong>(6), ACTNO <strong>SMALLINT</strong>, ACTSTAFF <strong>DECIMAL</strong>(5,2), ACSTDATE <strong>DATE</strong>, ACENDATE <strong>DATE</strong>) <strong> LANGUAGE SQL BEGIN RETURN SELECT</strong> * <strong>FROM</strong> PROJACT <strong>WHERE</strong> ACSTDATE<=indate; <strong>END</strong></pre> </div> <div class="section"><p>The function can then be called as:</p> <pre><strong>SELECT</strong> * <strong>FROM TABLE</strong>(PROJFUNC(:datehv)) X</pre> <p>SQL table functions are required to have one and only one RETURN statement.</p> </div> </div> <div> <div class="familylinks"> <div class="parentlink"><strong>Parent topic:</strong> <a href="rbafyudfsql.htm" title="SQL functions are UDFs that you have defined, written, and registered using the CREATE FUNCTION SQL statement.">Write UDFs as SQL functions</a></div> </div> </div> </body> </html>